The rest of tzcode94g from Arthur David Olson.

Obtained From: Arthur David Olson, ftp://elsie.nci.nih.gov/pub/tzcode94g.tar.gz

1 files changed, 393 insertions, 0 deletions

diff --git a/lib/libc/stdtime/strftime.c b/lib/libc/stdtime/strftime.c
new file mode 100644
index 0000000..821bc79
--- /dev/null
+++ b/lib/libc/stdtime/strftime.c
@@ -0,0 +1,393 @@
+#ifndef lint
+#ifndef NOID
+static char	elsieid[] = "@(#)strftime.c	7.19";
+/*
+** Based on the UCB version with the ID appearing below.
+** This is ANSIish only when time is treated identically in all locales and
+** when "multibyte character == plain character".
+*/
+#endif /* !defined NOID */
+#endif /* !defined lint */
+
+#include "private.h"
+
+/*
+ * Copyright (c) 1989 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * Redistribution and use in source and binary forms are permitted
+ * provided that the above copyright notice and this paragraph are
+ * duplicated in all such forms and that any documentation,
+ * advertising materials, and other materials related to such
+ * distribution and use acknowledge that the software was developed
+ * by the University of California, Berkeley.  The name of the
+ * University may not be used to endorse or promote products derived
+ * from this software without specific prior written permission.
+ * THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
+ * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
+ * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+ */
+
+#ifndef LIBC_SCCS
+#ifndef lint
+static const char sccsid[] = "@(#)strftime.c	5.4 (Berkeley) 3/14/89";
+#endif /* !defined lint */
+#endif /* !defined LIBC_SCCS */
+
+#include "tzfile.h"
+
+static const char afmt[][4] = {
+	"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
+};
+static const char Afmt[][10] = {
+	"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday",
+	"Saturday"
+};
+static const char bfmt[][4] = {
+	"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep",
+	"Oct", "Nov", "Dec"
+};
+static const char Bfmt[][10] = {
+	"January", "February", "March", "April", "May", "June", "July",
+	"August", "September", "October", "November", "December"
+};
+
+static char *_add P((const char *, char *, const char *));
+static char *_conv P((int, const char *, char *, const char *));
+static char *_fmt P((const char *, const struct tm *, char *, const char *));
+
+size_t strftime P((char *, size_t, const char *, const struct tm *));
+
+extern char *tzname[];
+
+size_t
+strftime(s, maxsize, format, t)
+	char *s;
+	size_t maxsize;
+	const char *format;
+	const struct tm *t;
+{
+	char *p;
+
+	p = _fmt(format, t, s, s + maxsize);
+	if (p == s + maxsize)
+		return 0;
+	*p = '\0';
+	return p - s;
+}
+
+static char *
+_fmt(format, t, pt, ptlim)
+	const char *format;
+	const struct tm *t;
+	char *pt;
+	const char *ptlim;
+{
+	for (; *format; ++format) {
+		if (*format == '%') {
+label:
+			switch(*++format) {
+			case '\0':
+				--format;
+				break;
+			case 'A':
+				pt = _add((t->tm_wday < 0 || t->tm_wday > 6) ?
+					"?" : Afmt[t->tm_wday], pt, ptlim);
+				continue;
+			case 'a':
+				pt = _add((t->tm_wday < 0 || t->tm_wday > 6) ?
+					"?" : afmt[t->tm_wday], pt, ptlim);
+				continue;
+			case 'B':
+				pt = _add((t->tm_mon < 0 || t->tm_mon > 11) ?
+					"?" : Bfmt[t->tm_mon], pt, ptlim);
+				continue;
+			case 'b':
+			case 'h':
+				pt = _add((t->tm_mon < 0 || t->tm_mon > 11) ?
+					"?" : bfmt[t->tm_mon], pt, ptlim);
+				continue;
+			case 'c':
+				pt = _fmt("%D %X", t, pt, ptlim);
+				continue;
+			case 'C':
+				/*
+				** %C used to do a...
+				**	_fmt("%a %b %e %X %Y", t);
+				** ...whereas now POSIX 1003.2 calls for
+				** something completely different.
+				** (ado, 5/24/93)
+				*/
+				pt = _conv((t->tm_year + TM_YEAR_BASE) / 100,
+					"%02d", pt, ptlim);
+				continue;
+			case 'D':
+				pt = _fmt("%m/%d/%y", t, pt, ptlim);
+				continue;
+			case 'x':
+				/*
+				** Version 3.0 of strftime from Arnold Robbins
+				** (arnold@skeeve.atl.ga.us) does the
+				** equivalent of...
+				**	_fmt("%a %b %e %Y");
+				** ...for %x; since the X3J11 C language
+				** standard calls for "date, using locale's
+				** date format," anything goes.  Using just
+				** numbers (as here) makes Quakers happier.
+				** Word from Paul Eggert (eggert@twinsun.com)
+				** is that %Y-%m-%d is the ISO standard date
+				** format, specified in ISO 2014 and later
+				** ISO 8601:1988, with a summary available in
+				** pub/doc/ISO/english/ISO8601.ps.Z on
+				** ftp.uni-erlangen.de.
+				** (ado, 5/30/93)
+				*/
+				pt = _fmt("%m/%d/%y", t, pt, ptlim);
+				continue;
+			case 'd':
+				pt = _conv(t->tm_mday, "%02d", pt, ptlim);
+				continue;
+			case 'E':
+			case 'O':
+				/*
+				** POSIX locale extensions, a la
+				** Arnold Robbins' strftime version 3.0.
+				** The sequences
+				**	%Ec %EC %Ex %Ey %EY
+				**	%Od %oe %OH %OI %Om %OM
+				**	%OS %Ou %OU %OV %Ow %OW %Oy
+				** are supposed to provide alternate
+				** representations.
+				** (ado, 5/24/93)
+				*/
+				goto label;
+			case 'e':
+				pt = _conv(t->tm_mday, "%2d", pt, ptlim);
+				continue;
+			case 'H':
+				pt = _conv(t->tm_hour, "%02d", pt, ptlim);
+				continue;
+			case 'I':
+				pt = _conv((t->tm_hour % 12) ?
+					(t->tm_hour % 12) : 12,
+					"%02d", pt, ptlim);
+				continue;
+			case 'j':
+				pt = _conv(t->tm_yday + 1, "%03d", pt, ptlim);
+				continue;
+			case 'k':
+				/*
+				** This used to be...
+				**	_conv(t->tm_hour % 12 ?
+				**		t->tm_hour % 12 : 12, 2, ' ');
+				** ...and has been changed to the below to
+				** match SunOS 4.1.1 and Arnold Robbins'
+				** strftime version 3.0.  That is, "%k" and
+				** "%l" have been swapped.
+				** (ado, 5/24/93)
+				*/
+				pt = _conv(t->tm_hour, "%2d", pt, ptlim);
+				continue;
+#ifdef KITCHEN_SINK
+			case 'K':
+				/*
+				** After all this time, still unclaimed!
+				*/
+				pt = _add("kitchen sink", pt, ptlim);
+				continue;
+#endif /* defined KITCHEN_SINK */
+			case 'l':
+				/*
+				** This used to be...
+				**	_conv(t->tm_hour, 2, ' ');
+				** ...and has been changed to the below to
+				** match SunOS 4.1.1 and Arnold Robbin's
+				** strftime version 3.0.  That is, "%k" and
+				** "%l" have been swapped.
+				** (ado, 5/24/93)
+				*/
+				pt = _conv((t->tm_hour % 12) ?
+					(t->tm_hour % 12) : 12,
+					"%2d", pt, ptlim);
+				continue;
+			case 'M':
+				pt = _conv(t->tm_min, "%02d", pt, ptlim);
+				continue;
+			case 'm':
+				pt = _conv(t->tm_mon + 1, "%02d", pt, ptlim);
+				continue;
+			case 'n':
+				pt = _add("\n", pt, ptlim);
+				continue;
+			case 'p':
+				pt = _add(t->tm_hour >= 12 ? "PM" : "AM",
+					pt, ptlim);
+				continue;
+			case 'R':
+				pt = _fmt("%H:%M", t, pt, ptlim);
+				continue;
+			case 'r':
+				pt = _fmt("%I:%M:%S %p", t, pt, ptlim);
+				continue;
+			case 'S':
+				pt = _conv(t->tm_sec, "%02d", pt, ptlim);
+				continue;
+			case 'T':
+			case 'X':
+				pt = _fmt("%H:%M:%S", t, pt, ptlim);
+				continue;
+			case 't':
+				pt = _add("\t", pt, ptlim);
+				continue;
+			case 'U':
+				pt = _conv((t->tm_yday + 7 - t->tm_wday) / 7,
+					"%02d", pt, ptlim);
+				continue;
+			case 'u':
+				/*
+				** From Arnold Robbins' strftime version 3.0:
+				** "ISO 8601: Weekday as a decimal number
+				** [1 (Monday) - 7]"
+				** (ado, 5/24/93)
+				*/
+				pt = _conv((t->tm_wday == 0) ? 7 : t->tm_wday,
+					"%d", pt, ptlim);
+				continue;
+			case 'V':
+				/*
+				** From Arnold Robbins' strftime version 3.0:
+				** "the week number of the year (the first
+				** Monday as the first day of week 1) as a
+				** decimal number (01-53).  The method for
+				** determining the week number is as specified
+				** by ISO 8601 (to wit: if the week containing
+				** January 1 has four or more days in the new
+				** year, then it is week 1, otherwise it is
+				** week 53 of the previous year and the next
+				** week is week 1)."
+				** (ado, 5/24/93)
+				*/
+				/*
+				** XXX--If January 1 falls on a Friday,
+				** January 1-3 are part of week 53 of the
+				** previous year.  By analogy, if January
+				** 1 falls on a Thursday, are December 29-31
+				** of the PREVIOUS year part of week 1???
+				** (ado 5/24/93)
+				**
+				** You are understood not to expect this.
+				*/
+				{
+					int i;
+
+					i = (t->tm_yday + 10 - (t->tm_wday ?
+						(t->tm_wday - 1) : 6)) / 7;
+					if (i == 0) {
+						/*
+						** What day of the week does
+						** January 1 fall on?
+						*/
+						i = t->tm_wday -
+							(t->tm_yday - 1);
+						/*
+						** Fri Jan 1: 53
+						** Sun Jan 1: 52
+						** Sat Jan 1: 53 if previous
+						** 		 year a leap
+						**		 year, else 52
+						*/
+						if (i == TM_FRIDAY)
+							i = 53;
+						else if (i == TM_SUNDAY)
+							i = 52;
+						else	i = isleap(t->tm_year +
+								TM_YEAR_BASE) ?
+								53 : 52;
+#ifdef XPG4_1994_04_09
+						/*
+						** As of 4/9/94, though,
+						** XPG4 calls for 53
+						** unconditionally.
+						*/
+						i = 53;
+#endif /* defined XPG4_1994_04_09 */
+					}
+					pt = _conv(i, "%02d", pt, ptlim);
+				}
+				continue;
+			case 'v':
+				/*
+				** From Arnold Robbins' strftime version 3.0:
+				** "date as dd-bbb-YYYY"
+				** (ado, 5/24/93)
+				*/
+				pt = _fmt("%e-%b-%Y", t, pt, ptlim);
+				continue;
+			case 'W':
+				pt = _conv((t->tm_yday + 7 -
+					(t->tm_wday ?
+					(t->tm_wday - 1) : 6)) / 7,
+					"%02d", pt, ptlim);
+				continue;
+			case 'w':
+				pt = _conv(t->tm_wday, "%d", pt, ptlim);
+				continue;
+			case 'y':
+				pt = _conv((t->tm_year + TM_YEAR_BASE) % 100,
+					"%02d", pt, ptlim);
+				continue;
+			case 'Y':
+				pt = _conv(t->tm_year + TM_YEAR_BASE, "%04d",
+					pt, ptlim);
+				continue;
+			case 'Z':
+#ifdef TM_ZONE
+				if (t->TM_ZONE)
+					pt = _add(t->TM_ZONE, pt, ptlim);
+				else
+#endif /* defined TM_ZONE */
+				if (t->tm_isdst == 0 || t->tm_isdst == 1) {
+					pt = _add(tzname[t->tm_isdst],
+						pt, ptlim);
+				} else  pt = _add("?", pt, ptlim);
+				continue;
+			case '%':
+			/*
+			 * X311J/88-090 (4.12.3.5): if conversion char is
+			 * undefined, behavior is undefined.  Print out the
+			 * character itself as printf(3) also does.
+			 */
+			default:
+				break;
+			}
+		}
+		if (pt == ptlim)
+			break;
+		*pt++ = *format;
+	}
+	return pt;
+}
+
+static char *
+_conv(n, format, pt, ptlim)
+	int n;
+	const char *format;
+	char *pt;
+	const char *ptlim;
+{
+	char buf[INT_STRLEN_MAXIMUM(int) + 1];
+
+	(void) sprintf(buf, format, n);
+	return _add(buf, pt, ptlim);
+}
+
+static char *
+_add(str, pt, ptlim)
+	const char *str;
+	char *pt;
+	const char *ptlim;
+{
+	while (pt < ptlim && (*pt = *str++) != '\0')
+		++pt;
+	return pt;
+}